1
GATE CSE 2022
Numerical
+1
-0.33

Consider a demand paging system with four page frames (initially empty) and LRU page replacement policy. For the following page reference string

7, 2, 7, 3, 2, 5, 3, 4, 6, 7, 7, 1, 5, 6, 1

the page fault rate, defined as the ratio of number of page faults to the number of memory accesses (rounded off to one decimal place) is _____________.

Your input ____
2
GATE CSE 2020
MCQ (Single Correct Answer)
+1
-0.33
Consider allocation of memory to a new process. Assume that none of the existing holes in the memory will exactly fit the process's memory requirement. Hence, a new hole of smaller size will be created if allocation is made in any of the existing holes. Which one of the following statements is TRUE?
A
The hole created by worst fit is always larger than the hole created by first fit.
B
The hole created by best fit is never larger than the hole created by first fit.
C
The hole created by first fit is always larger than the hole created by next fit.
D
The hole created by next fit is never larger than the hole created by best fit.
3
GATE CSE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
In which one of the following page replacement algorithms it is possible for the page fault rate to increase even when the number of allocated frames increases?
A
$$LRU$$ (Least Recently Used)
B
$$OPT$$ (Optimal Page Replacement)
C
$$MRU$$ (Most Recently Used)
D
$$FIFO$$ (First In First Out)
4
GATE CSE 2015 Set 2
Numerical
+1
-0
A computer system implements a $$40$$-bit virtual address, page size of $$8$$ kilobytes, and a $$128$$-entry translation look-aside buffer $$(TLB)$$ organized into $$32$$ sets each having four ways. Assume that the $$TLB$$ tag does not store any process id. The minimum length of the $$TLB$$ tag in bits is ________________.
Your input ____
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